package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController("userDishController")
@RequestMapping("user/dish")
@Api(tags = "C端-菜品浏览接口")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    @GetMapping("list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> getDishByCategoryId(Integer categoryId){
        //思路，先查redis中的数据，如果为null，则改为查数据库的数据，并将数据库中的数据缓存到redis中
        //构造redis中的key，
        String key = "dish_"+categoryId;
        ValueOperations valueOperations = redisTemplate.opsForValue();
        List<DishVO> dishVOList= (List<DishVO>) valueOperations.get(key);
        if(dishVOList!=null &&dishVOList.size()>0){
            return Result.success(dishVOList);
        }



        log.info("根据分类id查询菜品",categoryId);
        dishVOList=dishService.usergetDishByCategoryIdAndStatus(categoryId);
        valueOperations.set(key,dishVOList);
        return Result.success(dishVOList);
    }
}
